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(Model.) I

H. A. HOLLOMAN.

BURGLAR ALARM.

No. 247,35l1

UNITED STATES PATENT OFFICE.

vHARVEY A. HOLLOMAN, OF WHITE ROOK, TEXAS, ASSIGNOR TO HIMSELF I AND WILLIAM LOWRY, OF SAME PLACE.

BURGLAR-ALARM.

SPECIFICATION forming part of Letters Patent No. 247,351,W dated September 20, 1881.

Application filed July 9, 1881. (Model.)

To all 'whom it may concern Be it known that I, HARVEY A. HoLLoMAN, of White Rock,inthe county of Hunt and State of Texas, have invented a new and Improved Alarm Attachment, of which the following is a specication.

The object of my invention is to provide a new and improved attachment for releasing a mechanical alarm, which may be used as a burglar or lire alarm.

The invention consists in a wire attached to the anchor or escapement-lever of a clock-work for ringing or sounding an alarm-bell, which wire has a hook at its outer end, which is passed into a loop, ring, or hook at the end of a wire connected with the key-bolt or knobbolt of a lock, or with a wire leading to places a considerable distance from the alarm.

In the accompanying drawings, Figure l is a front elevation of a lock and alarm provided with my improved attachment, parts being shown broken out. Fig. 2 is a longitudinal elevation ofthe devices for releasing the alarm from a distance, parts being shown in section. Fig. 3 is a plan view of the same.

Similar letters of reference indicate corresponding parts.

A wire, A, is attached to the anchor B or escapement-lever ot' a clock-work, C, acting on the hammer D ot' a gong or alarm-bell, E, and to the outer end of this wire A a swing-wire, F, is attached, having a hook at its outer end. A wire, G, with a loop or eye, H, at its outer end, is attached tothe inner end of the knobbolt J of a lock, K, and a like wire, G, is attached to the key-bolt L of the lock K.

It' the alarm is to be sounded from a distance the following device is used: Eyelets or loops M are attached to springs N on posts O, and several of these springs N are connected by wires I), the ends of which are fastened to a transverse sliding block, Q, which is pressed downward on a frame, R, by a spring, S. A locking-pin, T, passes up through the frame R, and is pivoted at its lower end to a lever, U, which is pressed upward by a spring, V. A loop or ring, W, is fastened to the front of the block Q, and a ring or loop, W', is fastened to the frame R, below the ring W.

The operation is as follows: The clock-work 5o hooks of the wires F in the loops H; but as soon as the bolt with which the wire A is connected by means ot' the wire F is drawn back in the inverse direction ot' lthe arrow a' 6o the wire F is released and drops, and thus releases the clock-work which vbrates the hammer D and operates the alarm. This arrangement will answer very well it' the alarm is near the lock, butif the alarm is located at a central station in a town a somewhat different device is to be used. In this case the frame Q is drawn outward by means of a bar inserted in the loops IV and W', as shown in dotted lines, until the pin T projects up against the 7o inner edge of the block Q and holds this block in the position shown in Fig. 2. The springs N are held up against the posts O, and the hooks on the ends of the wires F are passed into therings M, and are held therein by the tension ofthe wire P. It' the lever U is depressed the pin T is lowered, and the springs N draw the wires P and the block Q in the direction of the arrow b', thus releasing the wires F and thereby releasing the clock-work. The 8o wires I can be made of any desired length.

It' the alarm is to be connected with a door or window a short distance from the alarm the devices Q and R can be dispensed with.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- In an alarm attachment, the combination, with the springs N, of the wires P, the eyelet or loop M, the wire F, with a hook at the end, 9o the block Q, the spring S, the pin T, the lever U, and the spring V, substantially as herein shown and described, and for the purpose set forth.

HARVEY ALLEN HOLLOMAN. Witnesses:

W. H. RAYsDALE, C. W. COLLIER. 

